I've been reading some of these escrow threads and I'm confused about something:

Is it really true that the most popular kind of escrow on Bitcointalk involves the buyer just sending the funds to a normal Bitcoin address owned by the escrow agent, and not sending it to a 2-of-3 multisig address? When I see arbitrators offering their services it seems like they're expecting to have full control of the funds. Or am I misunderstanding?

If I'm right that people here usually just trust the escrow agent with the funds, why do they choose to do that when they could instead of 2 of 3 multisig? Is multisig just too much trouble?